Pengaruh Penambahan Karbon Hitam Sebagai Bahan Pengisi pada Proses Pengolahan Kompon terhadap Kekerasan pada Proses Pembuatan Packing Pintu Rebusan di Pt. Industri Karet Nusantara

Abstract

Have been made for the addition of carbon black filler material in the processing of compound with variation of 6, 7, 8, 9, 10, 10, 11 kg and hardness is obtained for 63, 70, 73, 75, 82, 88 ShoreA. Analysis of the results obtained that,the more the addition of carbon black, the greater hardnessand vice versa gained the slight increase in carbon black obtained by the smaller hardness.